/* Draftwage — Drafting Board / title-block
   Signature: dashed construction grid + amber title-block stamp.
   Slate paper (no Prussian/cyanotype wash). Barlow Condensed + IBM Plex Serif.
   Distinct from: Pay Brief tractor-feed, Hourwise parchment, New Contingent sage,
   Spare Beam void, Riso Folio pink/teal, Cyanatlas cyanotype. */

:root {
  color-scheme: light;
  --sheet: #E8EBEF;
  --raised: #F4F6F8;
  --ink: #1C2430;
  --muted: #5A6574;
  --grid: #9AA3B0;
  --rule: #C5CCD6;
  --slate: #3A4656;
  --amber: #C9892A;
  --amber-wash: #F3E6C8;
  --display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --text: "IBM Plex Serif", Georgia, serif;
  --mono: "IBM Plex Mono", Consolas, monospace;
  --shell: 68rem;
  --gutter: clamp(1.1rem, 4vw, 2.5rem);
  --band: clamp(2.4rem, 5vw, 4.5rem);
  --grid-size: 28px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent calc(var(--grid-size) - 1px),
      rgba(154, 163, 176, 0.28) calc(var(--grid-size) - 1px),
      rgba(154, 163, 176, 0.28) var(--grid-size)
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent calc(var(--grid-size) - 1px),
      rgba(154, 163, 176, 0.22) calc(var(--grid-size) - 1px),
      rgba(154, 163, 176, 0.22) var(--grid-size)
    ),
    var(--sheet);
  background-size: var(--grid-size) var(--grid-size), var(--grid-size) var(--grid-size), auto;
  color: var(--ink);
  font-family: var(--text);
  font-size: clamp(1.02rem, 0.98rem + 0.2vw, 1.12rem);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

a {
  color: var(--slate);
  text-underline-offset: 0.18em;
  text-decoration-thickness: from-font;
}
a:hover { color: var(--amber); }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--raised);
  padding: 0.65rem 1rem;
  z-index: 40;
  font-family: var(--display);
  letter-spacing: 0.04em;
}
.skip:focus { left: 0.75rem; top: 0.75rem; }

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* Title-block stamp — signature */
.tb {
  display: inline-grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 0.65rem;
  border: 2px solid var(--ink);
  background: var(--raised);
  padding: 0.45rem 0.65rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  line-height: 1.35;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  box-shadow: 3px 3px 0 var(--amber-wash);
}
.tb__mark {
  grid-row: 1 / span 3;
  align-self: center;
  width: 0.55rem;
  height: 2.4rem;
  background: var(--amber);
}
.tb__proj { font-weight: 600; color: var(--ink); }
.tb__meta { color: var(--muted); }
.tb__rev {
  color: var(--amber);
  font-weight: 600;
  border-top: 1px dashed var(--grid);
  padding-top: 0.2rem;
  grid-column: 2;
}

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--raised) 92%, transparent);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: blur(6px);
}
.top__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-block: 0.85rem 0.35rem;
}
.brand {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.55rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--ink);
  text-transform: uppercase;
}
.brand:hover { color: var(--slate); }
.top__meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
  padding-bottom: 0.75rem;
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover,
.nav a[aria-current="page"] { color: var(--ink); border-bottom: 2px solid var(--amber); }

.hero {
  position: relative;
  padding: var(--band) 0 calc(var(--band) * 0.85);
  border-bottom: 1px dashed var(--grid);
}
.hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0, transparent 72%, rgba(201, 137, 42, 0.08) 72%, transparent 100%),
    repeating-linear-gradient(
      0deg,
      transparent 0 13px,
      rgba(58, 70, 86, 0.06) 13px 14px
    );
  mask-image: linear-gradient(180deg, #000 40%, transparent);
}
.hero__board {
  position: relative;
  display: grid;
  gap: 1.25rem;
  align-items: start;
}
@media (min-width: 820px) {
  .hero__board {
    grid-template-columns: minmax(11rem, 14rem) 1fr;
    gap: 2rem;
  }
}
.hero__brand {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.6rem, 7vw, 4.4rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink);
}
.hero h1 {
  margin: 0.35rem 0 0.75rem;
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.55rem, 3.4vw, 2.35rem);
  line-height: 1.12;
  letter-spacing: 0.01em;
  max-width: 22ch;
  text-wrap: balance;
}
.hero__stand {
  margin: 0;
  max-width: 42rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.block {
  padding: calc(var(--band) * 0.85) 0;
  border-bottom: 1px dashed var(--grid);
}
.block--raised { background: color-mix(in srgb, var(--raised) 88%, transparent); }
.eyebrow {
  margin: 0 0 0.4rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber);
  font-weight: 600;
}
h2 {
  margin: 0 0 0.85rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.45rem, 2.6vw, 1.9rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.1;
}
h3 {
  margin: 0 0 0.4rem;
  font-family: var(--display);
  font-weight: 650;
  font-size: 1.28rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.15;
}
p { margin: 0 0 1em; max-width: 66ch; }
li { max-width: 66ch; }

.library {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}
.entry {
  display: grid;
  gap: 0.35rem 1rem;
  padding: 1rem 1.1rem;
  background: var(--raised);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--amber);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.entry:hover {
  border-color: var(--slate);
  transform: translateY(-1px);
}
.entry__id {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.entry h3 { margin: 0; }
.entry h3 a { text-decoration: none; color: var(--ink); }
.entry h3 a:hover { color: var(--amber); }
.entry p { margin: 0.35rem 0 0; color: var(--muted); font-size: 0.98rem; }

.standards {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}
.standards li {
  padding: 0.85rem 1rem;
  border: 1px dashed var(--grid);
  background: var(--raised);
  max-width: none;
}
.standards strong {
  display: block;
  font-family: var(--display);
  font-size: 1.05rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.defs {
  margin: 0;
  display: grid;
  gap: 0.75rem 1.25rem;
}
@media (min-width: 720px) {
  .defs { grid-template-columns: 14rem 1fr; }
}
.defs dt {
  font-family: var(--display);
  font-weight: 650;
  font-size: 1.05rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin: 0;
}
.defs dd {
  margin: 0;
  color: var(--muted);
  max-width: 58ch;
}

.flag {
  margin-top: 1.25rem;
  padding: 1rem 1.1rem;
  border: 2px solid var(--ink);
  background: var(--amber-wash);
  box-shadow: 4px 4px 0 rgba(58, 70, 86, 0.15);
}
.flag p { margin: 0; max-width: none; }

.article__head {
  padding: calc(var(--band) * 0.7) 0 0.5rem;
  border-bottom: 1px dashed var(--grid);
}
.article__meta {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.prose { padding-block: 1.5rem 2rem; }
.prose h2 { margin-top: 1.6rem; }
.prose ul { padding-left: 1.2rem; }
.backlink {
  display: inline-block;
  margin-top: 1.5rem;
  font-family: var(--display);
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
}

.foot {
  padding: 1.75rem 0 2.5rem;
  background: var(--ink);
  color: #D5DBE4;
}
.foot a { color: #F3E6C8; }
.foot a:hover { color: #fff; }
.foot__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.1rem;
  margin-bottom: 1rem;
  font-family: var(--display);
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.foot__nav a { text-decoration: none; }
.foot__note {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  color: #A8B1BE;
  max-width: 70ch;
}
.foot .tb {
  background: #243040;
  border-color: #D5DBE4;
  color: #D5DBE4;
  box-shadow: 3px 3px 0 rgba(201, 137, 42, 0.35);
}
.foot .tb__proj { color: #F4F6F8; }
.foot .tb__meta { color: #A8B1BE; }

@media (prefers-reduced-motion: reduce) {
  .entry { transition: none; }
  .entry:hover { transform: none; }
}